@misc{indiciaebfe61182579f,
  title = {Antenatal screening for Down's syndrome.},
  author = {N J Wald and A Kennard and A Hackshaw and A McGuire},
  year = {1998},
  url = {https://pubmed.ncbi.nlm.nih.gov/9561893/},
  note = {Source identifier: 9561893}
}